Montana Medical Savings Account: Limits, Uses, and Penalties

A Montana medical savings account, formally called a Medical Care Savings Account or MSA, lets any Montana resident set aside money for healthcare costs and deduct the contribution from their Montana taxable income. For the 2026 tax year, the maximum contribution is $4,800, and the full amount comes off your state taxable income.¹ Unlike a federal Health Savings Account, a Montana MSA does not require a high-deductible health plan, so you can open one no matter what insurance you carry.

Who Qualifies

The only eligibility rule is Montana residency. Any resident can establish an MSA for themselves or a dependent.² Employer coverage, Medicare, a marketplace plan, no insurance at all — none of it changes your eligibility.

You also have flexibility in who runs the account. Banks, credit unions, trust companies, insurers, CPAs, attorneys, brokers, and investment advisers are all permitted administrators, and so are you. Self-administration is explicitly allowed, which means you can open a dedicated savings account at your own bank, designate it as your MSA, and skip paying anyone to manage it.³ The tradeoff is that self-administered accounts put the reporting and recordkeeping on you.

How Much You Can Contribute

The 2026 contribution cap is $4,800 per taxpayer.¹ Montana uses one limit regardless of whether you are single or have a family to cover. If you want to pay a spouse’s or child’s medical bills from the account, you can, but your own annual contribution ceiling does not go up.

The limit adjusts each year for inflation. Senate Bill 550 in 2023 set a $4,500 base for tax year 2024 and tied future years to a Consumer Price Index factor; the Department of Revenue publishes the updated number after January 1.⁴ Annual contributions are capped, but the balance is not. Your account can grow indefinitely, and interest earned inside the account is also free of Montana income tax as long as the money stays in or comes out for an eligible expense.¹

One boundary worth stating up front: the deduction applies only to your Montana return. You cannot claim MSA contributions on your federal income tax.⁵ The deduction had been set to sunset on January 1, 2024, but SB 550 made it permanent for tax years beginning after December 31, 2023, so it remains in place for 2026.⁴

What You Can Spend It On

MSA money comes out tax-free for anything that qualifies as a medical expense under IRS Publication 502 — the same list the IRS uses for the itemized medical deduction. Doctor visits, hospital care, prescriptions, dental and vision, mental health treatment, medical equipment, and travel for care all qualify.⁶ You can pay for your own costs or anyone else’s, including people who are not your dependents.¹

Montana’s list goes beyond the federal one in a few useful places. You can also use MSA funds for:

Long-term care insurance premiums or annuities covering you or someone else
Wages approximately lost while caring for a parent, spouse, or child under circumstances covered by the Family and Medical Leave Act
Direct primary care arrangement fees
Payments to a qualifying health care sharing ministry
Fees to administer the MSA itself

Those categories were added or clarified by SB 550 in 2023.⁴

The one hard rule on eligible expenses is no double-dipping. If insurance, a federal HSA, or a flexible spending account has already paid or reimbursed a bill, you cannot also pay it from your MSA, and the reverse holds too.¹

Withdrawals and the 10% Penalty

Withdrawals for eligible medical expenses are tax-free at any time.¹ If you paid a qualifying bill out of pocket during the prior year, you have until January 15 of the following year to reimburse yourself from the MSA.⁷

Non-medical withdrawals are tightly restricted. Montana law lets you pull funds out for any purpose only on the last business day of your administrator’s business year. For a self-administered account, that is the last weekday in December. A non-medical withdrawal taken on that day is subject to ordinary Montana income tax, but no penalty. A non-medical withdrawal on any other day owes ordinary income tax plus a 10% penalty on the amount taken.⁸

Note the difference from a federal HSA: Montana has no age-65 or disability carve-out. The penalty depends entirely on timing and purpose, not on how old you are. People who assume the rules loosen at retirement get caught by this.

Balances carry forward every year with no expiration and no accumulation ceiling, so the MSA works as a long-term savings vehicle, not an annual spend-down account.

If You Move or Die

Leaving Montana has real tax consequences. The state treats a change of residency as a deemed withdrawal of your entire account balance on the last business day of your Montana residency. The whole balance becomes taxable Montana income for that year. The 10% penalty does not apply to this deemed withdrawal, but the income tax does.⁷ If a move is on the horizon, spending the balance down on eligible expenses first — a deferred dental procedure, new glasses, a long-term care premium — reduces what you will owe.

At death, immediate family can inherit the balance tax-free, but only if they move the funds into their own Montana MSA. Funds that are not transferred into another MSA become taxable.¹

Montana MSA Compared to a Federal HSA

The two accounts can look similar from a distance but differ in ways that matter if you are deciding between them, or whether to hold both.

Insurance requirement: a federal HSA requires enrollment in a high-deductible health plan; a Montana MSA has no insurance requirement.²
Tax reach: HSA contributions reduce federal adjusted gross income; MSA contributions reduce only Montana taxable income.⁵
2026 limits: a federal HSA allows $4,400 for individual coverage and $8,750 for family coverage; a Montana MSA has a single $4,800 limit regardless of coverage.⁹
Expense list: a Montana MSA covers everything a federal HSA does, plus FMLA-type family leave wages, direct primary care fees, and health care sharing ministry payments.
Portability: an HSA follows you anywhere; a Montana MSA is tied to Montana residency, and leaving the state triggers a deemed withdrawal of the full balance.

You can hold both at the same time. The only restriction is that the same bill cannot be paid or reimbursed from both. If you are enrolled in an HDHP, contributing to both stacks a federal deduction on top of a state deduction.

Reporting and Records

If you self-administer the account, you report its activity on your Montana individual income tax return: starting and ending balances, contributions, withdrawals, interest or other income earned, and any penalties withheld.¹⁰

Whoever runs the account, keep receipts for every eligible expense you pay from the MSA. Montana requires account holders to hold onto that documentation for at least three years from the date you filed the Montana return for the year the expense occurred.⁷ If the Department of Revenue questions a withdrawal and you cannot show it was for an eligible expense, it can be reclassified as unqualified, with income tax and the 10% penalty attached.

1
Montana Department of Revenue. Montana Medical Care Savings Account
2
Montana State Legislature. Montana Code Annotated 15-61-201 – Establishment of Account
3
Montana State Legislature. Montana Code Annotated 15-61-102 – Definitions
4
Montana State Legislature. Senate Bill 550 – Extending the Medical Savings Account Tax Deduction
5
Montana Department of Revenue. Montana Medical Care Savings Account Deduction Revived
6
Office of the Law Revision Counsel. 26 USC 213 – Medical, Dental, Etc., Expenses
7
Cornell Law School – Legal Information Institute. Mont. Admin. r. 42.15.603 – Medical Care Savings Account – Withdrawals, Penalties, and Transfers
8
Montana State Legislature. Montana Code Annotated 15-61-203 – Withdrawal of Funds From Account for Purposes Other Than Eligible Medical Expenses
9
Internal Revenue Service. IRS Notice – 2026 HSA Contribution Limits
10
Cornell Law School – Legal Information Institute. Mont. Admin. r. 42.15.602 – Medical Care Savings Account Reporting and Payments